I got the feeling some of the shots (looking up towards the Imperator Titan for instance) were reworked directly from Helsreach.
Helsreach is pretty awesome though, and follows the book pretty closely as well.
It still has me contemplating converting and building Grimaldus' squad...
The visual style fits the characters well in more ways than one (their armour is black and white, and so is their outlook on life) and it's certainly interesting, in a very
way

But i'd rather see a full length movie along the lines of
. Another fan-made short, but a darn good one. A two hour long movie made like that could finally break the chain of decidedly bad movies GW put out.
I personally have never seen
(I just saw it's available these days though

), and it was a shame how that was blocked by GW at such a late stage. If I recall correctly, it was finished, the creators were invited to Nottingham for a screening at GW behind closed doors, and after the end credits rolled, they were told that it was great, but GW would never allow it to be released, over the sound of marching lawyers in the background.
But apparently, it was not bad (certainly better than anything GW ever made or sanctioned; anyone remember Inquisitor?

).